State-of-the-Art Analysis of Blockchain-Based Industrial IoT (IIoT) for Smart Grids

In recent times, there has been a growing fascination in the blockchain technology (BC), leading to the development of many applications leveraging its attributes such as decentralization, transparency, fault tolerance, and robust security. In the domain of smart grids (SGs), numerous suggestions have arisen regarding the incorporation of BC to enhance various aspects such as intelligent energy management, energy trading, security and privacy preservation, microgrid (MG) administration, and eletric vehicles (EVs). This article conducts a comprehensive analysis of more than seventy scholarly works, projects, and testbeds to investigate seven key fields in the electrical industry where BC could potentially yield substantial benefits. Finally, an analysis of the technical obstacles associated with this technology will be conducted, followed by an exploration of the potential areas for future research.